查询词典 degradation

The results showed that the degrdation rate of fluorobenzene by TiO2/SnO2 coating rosed from 71.9% to 90.1% compared with pure TiO2 coating. The apparent rate constant k of the photocatalytic degradation is related to the initial concentration of fluorobenzene and the reaction order is zero. The corresponding degradation rate of aldehyde with the concentration of 100ppm rosed from 69.2% to 91.4% and the reaction order is one.

结果表明：与未改性涂料相比，SnO2改性涂料的活性对氟苯的降解率由71.9％提高到90.1％，反应表观速率常数与降解液初始浓度有关，光催化降解氟苯属于零级反应；对100ppm乙醛的降解率由69.2％提高到91.4％，光催化降解乙醛属于一级反应。

An aerobic culture utilizing 4-CNB as the sole source of carbon, nitrogen, and energy, named as A1 has been isolated from the acclimated aerobic sludge, it was Grame positive, the optimal condition for 4-CNB degradation were pH 7.5, the maximum specific substrate degradation rate of 4-CNB was 0.505mg.

从驯化的好氧污泥中分离得到小＊＊B好氧降解菌川，杆状，G＼降解试验发现最适叫7.5，最佳接种量580m扒100mL；该菌株降解4七NB的最大比降解速率为0.505＊g。

In the present work poly is prepared by chemical vapor deposition polymerization from [2.2] paracyclophane. Thermal gravimetrical analysis is used to study the thermal degradation. It is found that the onset of thermal degradation of poly in air is much lower than that in N2 due to the existence of O2 in the air.

用化学气相沉积聚合法制备了聚对亚苯基二亚甲基膜，由傅立叶变换红外光谱图证实了其化学结构采用热重分析研究了PPX的热降解性能，结果表明，在空气氛围中由于氧气的参与，其热稳定性比在N2中差，热氧化降解明显。

The result was that bilobalide cleavaged badly in most experiments because of the three unstable lactonic rings in the skeleton. Fortunately we were able not only to identify all the degradation products and establish the degradation mechanism.

总结一系列非预期的反应结果，我们归纳出了白果内酯结构变化中内酯环开环和进一步裂解的规律，基本掌握了白果内酯的化学性质。

A preliminary study on substrate specificity of Lumbricus Bimastus nuclease DNase E degradation studies showed that there were differences in degradation rate of the DNase E to different substrates.

双胸蚓组织核酸酶底物特异性的研究通过DNase E在最适反应条件下对几种不同底物降解速率的研究表明DNase E降解底物存在差异性。

How to ensure this new structure to be in elastic state under frequent earthqu ake, be mendable under design earthquake and not collapse under infrequent earthquake, especially the last item, is the problem to be solved imminently in engineering field. Center around this problem, 5 aspects of investigation are carried out as following:(1) The experiment of seismic performance of ASCCs in this new frame structure has not been reported, in order to study this problem, 9 ASCC specimens with shear steel plate are tested subjected to the horizontal low cyclic loading, in which, the shear span ratio is 3 and axial compression ratio is different. The hysteretic curves of 9 specimens are obtained. The seismic performance indexes such as energy dissipation, stiffness degradation, strength degradation, skeleton curves and ductility of this kind of column are acquired, and the seismic fortification measures including ultimate values of axial compression ratio under different seismic degree are suggested.

1新型框架结构中所采用的角钢混凝土柱抗震性能的试验研究尚未见报道，针对这一问题，本文进行了9根剪跨比为3、不同轴压比、采用钢板箍的角钢混凝土柱在水平低周反复荷载作用下的试验研究，获得了9根试验柱的滞回曲线，考察了该类柱的耗能、刚度退化、抗力衰减、骨架曲线及延性等抗震性能指标，建议了角钢混凝土柱在不同抗震等级下的轴压比限值等抗震构造措施。

As to Wild rice hull, the degradation rates was 46.1% after 18 days at 37℃, while only 37. 1% after 14 days at 50℃, attributed to the increased quantity of the mesophilic actinomyces. The difference of degradation rates for cellulose was its prominent source.

对于难降解蔬菜废物芠白壳，37℃时第18d降解率为461%，比其在50℃时降解至第14d时高9%；纤维素降解率差异是其差距的主要来源，这主要是因为中温有利于嗜温放线菌数量的增加。

From activated sluge of SBR system, to obtain dominant mixed bacteria, such as Nocardia and Pseudomonas by screening and acclimatization. When mixed and applied to degradation experiment of bleaching wastewater, degradation of chloride aromatic compounds very well.

从SBR系统的活性污泥中筛选、培育得到优势菌，经组合后，选取具有高效降解芳香族化合物的优势混合菌即假单胞菌和诺卡氏菌的组合菌，应用于造纸漂白废水的氯代芳香族化合物的降解实验。

The average degradation percentage in sarcoplasmic proteins, myofibrillar proteins and stroma pronteins were ordinally 62.07%, 46.15% and 8.56%, so that substances coming from degradation of sarcoplasmic proteins and myofibrillar proteins notabily effected qualities of jinhua hams.

在主成分分析中，总氮、肌原纤维蛋白、pH值、肌浆蛋白、PeN、浙江大学硕士学位论文NPN和核酸态氮对金华火腿理化特性的解释能力可达81 。38%，反映了金华火腿理化特性变异的绝大部分信息。

This pattern is characterized by the combination of pro-MMP-2 and membrane type 1 (MT1)-MMP expression, which drie pericellular generation of actie MMP-2 and local degradation of normal lier matrix. In addition there is a marked increase in expression of TIMP-1 leading to a more global inhibition of degradation of fibrillar lier collagens by interstitial collagenases (MMP-1/MMP-13). These pathways play a significant role in the progression of lier fibrosis.

其降解肝正常基质，同时抑制引起肝纤维化的纤维胶原降解，这种情况的特点是前明胶酶A合成和膜型1－MMP表达，使得小叶内细胞激活MMP-2和降解当处的正常肝基质，此外血浆1型组织基质金属蛋白酶抑制剂（TIMP-1）明显升高引起广泛的抑制间隙胶原酶(MMP-1/MMP-13)对纤维肝脏胶原的降解。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。